Holland and What Else?
 

Just starting to think about a trip to see the beautiful Holland tulips (April). Hope to plan a 10-day trip. What would suggestions be for building out - other cities/countries/etc. ... ?

Plenty to see in Holland! Have you consulted a good guidebook, such as the Michelin Green or Rough Guide?

Will you have a car?

a bicycle?
a boat?

both very possible alternatives

Basically we need more information from you, but you also need to do some research of your own.

Holland btw is the name of 2 provinces, the country in The Netherlands. The country has a lot to offer besides bulbs.

Paris? And fly home from Paris.
Or Germany, visiting towns/villages along the Mosel River or Rhine Gorge?

Or explore the Netherlands further. As I said much more than bulbs and Amsterdam.